The symbolic roll call turns into a DNC partypublished at 00:59 British Summer Time 21 August
Bernd Debusmann Jr
Reporting from the convention
A ceremonial roll call has begun, with state delegates from each state - as well as US territories - symbolically casting a vote for Kamala Harris.
For each state, representatives are giving short speeches about why they support Harris and Walz.
Across the floor, thousands of people are waving electronic, coloured wrist bands.
A DJ - who identified himself as DJ Cassidy - is urging delegates to "pass the mic across the nation" as he switches the soundtrack every few minutes.
It's occasionally hard to hear the speeches over the roar of the crowd. It's very much a party atmosphere here tonight.